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; ever 3. ill, sick 【 典例在線 】 Li Lei was ill/sick last 。 【 拓展精析 】 yet “ 已經(jīng) ” , 與現(xiàn)在完成時(shí)連用 , 用于疑問句或否定句中 , 通常置于句末。 Have you ever been there?你去過那里嗎? I have already seen the 。 【 活學(xué)活用 】 (1)—Where is Mr. Wang? (2020, 揚(yáng)州 ) —He together with his students __A__ Zhuyuwan Park. A. has gone to B. have gone to C. has been to D. have been to (2)We__C__the city for two months. A. have gone to B. have been to C. have been in D. have been (3)He has been_in/at(到達(dá) )the station for half an nobody meets him. 2. yet, ever, already, still 【 典例在線 】 I haven39。 have been to 意為 “ 去過某地 ” ,表示某人到過某地 ,現(xiàn)在已經(jīng)回來了;常和 ever、 never和次數(shù)連用。 【 拓展精析 】 have been to, have gone to, have been at/in都用于現(xiàn)在完成時(shí) , 表示過去的動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果。 He has gone to 。 it is+時(shí)間段+ since+從句 (一般過去時(shí) ), 意為 “ 自從?? 到現(xiàn)在已有多長時(shí)間了 ” 。 當(dāng)與 how long, for, since連用時(shí) , 句中的動(dòng)詞要用延續(xù)性動(dòng)詞;短暫性動(dòng)詞須換成延續(xù)性動(dòng)詞或表狀態(tài)的形容詞或介詞短語。 since后接表示過去某一時(shí)間的詞或短語 (如 since last month), 也可接表示過去的句子 (如 since he came to China)。s ten years since he became a 始到現(xiàn)在已有 10年了。 The film has been on for an 。 【 活學(xué)活用 】 (1)There __A__ a great concert in the theater next Saturday evening.(2020, 威海 ) A. will be B. will have C. has D. is going to have (2)—__D__ any students in the classroom when the earthquake happened? (2020, 平?jīng)?) —Yes, but they have been saved. A. There were B. Was there C. There was D. Were there (3)There __B__ great changes in such kind of PDAs(掌上電腦 ) in the last few years.(2020, 平?jīng)?) A. was been B. have been C. has had D. have had 2. Since 1989 Project Hope has built schools all over China.自從 1989年以來 , 希望工程已經(jīng)在全國建了學(xué)校。它可以用于不同時(shí)態(tài) , 也可以和情態(tài)動(dòng)詞連用。 These must be something wrong with your 的電腦一定出了毛病。 【 拓展精析 】 exercise作不可數(shù)名詞時(shí)意為 “ 鍛煉 (運(yùn)動(dòng) )” , 作可數(shù)名詞時(shí)意為 “ 練習(xí);體操 ” ;作動(dòng)詞時(shí)意為 “ 運(yùn)動(dòng);鍛煉 ” 。t take exercise, you will get 煉 , 你會(huì)發(fā)胖的。 【 活學(xué)活用 】 (4)Exercising more is good for our __B__. A. healthily B. health C. heal